12506921

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{347}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 15144960

約数和(自身を除く): 2638039

約数列:

[1, 7, 19, 133, 271, 347, 1897, 2429, 5149, 6593, 36043, 46151, 94037, 658259, 1786703, 12506921]

約数ペア:

[(1, 12506921), (7, 1786703), (19, 658259), (133, 94037), (271, 46151), (347, 36043), (1897, 6593), (2429, 5149)]